Add entity access control via ArtifactAuthzCheckView to security model

@@ -51,6 +51,7 @@ Foundation for autonomous business operations (ECA/SECA systems).
 - **Complete Discovery**: See all screens that exist in the system
 - **User Enforcement**: Access limited to user's actual permissions
 - **Service Control**: All service invocation strictly controlled by Artifact permissions
+- **Entity Access**: Entity queries limited by ArtifactAuthzCheckView permissions
 - **Audit Safe**: All actions logged and traceable to real users
 - **Container Isolation**: Run in Docker/Kubernetes with separate databases